PQ60033EKX15 Datasheet, PDF (9/15 Pages) SynQor Worldwide Headquarters – Eighth-brick DC-DC Converter

Technical Specification
See Fig. 15
10 µH
source
impedance
See Fig. 14
See Fig. 16
i_S
V_SOURCE
i_C
47 µF,
<1W ESR
electrolytic
capacitor
DC/DC
Converter
V_OUT
1 µF 15 µF,
ceramic _{100mW ESR}
capacitor _tantalum
capacitor
Figure 13: Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 14), Input Reflected Ripple Current
(Figure 15) and Output Voltage Ripple (Figure 16).
Input: 35-75V
Output: 3.3V
Current: 15A
Part No.: PQ60033EKx15
Figure 14: Input Terminal Ripple Current, ic, at full rated output current
and nominal input voltage with 10µH source impedance and 47µF
electrolytic capacitor (50 mA/div). See Figure 13.
Figure 15: Input reflected ripple current, is, through a 10 µH source
inductor, using a 47µF electrolytic input capacitor (5mA/div). See
Figure 13.
Figure 16: Output voltage ripple at nominal input voltage and rated
load current (50 mV/div). Load capacitance: 1µF ceramic capacitor and
15µF tantalum capacitor. Bandwidth: 20 MHz. See Figure 13.
Figure 17: Output voltage response to step-change in input voltage
(48V to 75V), at 15A load current. Load cap: 15µF tantalum capacitor
and 1uF ceramic cap. Ch 1: Vout (100mV/div), Ch 2: Vin (50V/div).
12
11
10
9
8
7
6
5
4
3
100% Load
2
50% Load
1
0% Load
0
40.0 39.5 39.0 38.5 38.0 37.5 37.0 36.6 36.0 35.5 35.0
Input Voltage (V)
Figure 18: Achievable trim-up percentage vs. input voltage at 0%, 50%
and full load. Vin=35-40V.
Product # PQ60033EKx15
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www.synqor.com
Doc.# 005-0005111 Rev. B
06/17/09
Page 9